Pencil-sharpener.



C. NASH.

PENCIL SHARPENR. PPLIOATION FILED sEPT.1s,1911.

1 .,043 ,1 30. Patented Nov. 5, i912.

' I 2 SHEETS-SHEET l.

I mul-1mg umm G. NASH. PENCIL SHARPENER. APPLICATION HLBD SEPT.'13,1911.

1,043; 30, Patented Nov. 5, 191g.

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Specification of Letters Patent.

CHESTER NASH, OF OREGON, ILLINOIS.

Patented Nov. 5, 1912.

Application tiled September 13, 1911. Serial No. 649,116.

'1b all whom t may concern.'

Be it known that I, CHESTER NASH, a citizen of the United States,residing at regOn,y

in the county of @gle and State of Illinois, ,ave'invented certain newand useful 11n- .'irovements in fencil-Sharpeners, `of which `thefollowingy is specification.`

My invention relates to improvements in pencil Sharpeners and has `foritslobject the production of a device of this character through themedium `of which a pencil may be sharpened witbifease and expedition.

A further object is the production of, a pencil Sharpener which will beof durable ind economical construction and efficient. in fiperation.

tlther objects willA appear hereii'iafter.-

lilith these objects in view, my invention consists in the combinationsand arrangements of parts hereinafter described and claimed. i

My invention will be best understood by reference to the accompanyingdrawings forming a part of this sj'iecification and in which.

Vliigure 1 is a side elevation of a pencil sharpener enibodying myinvention, F ig. 2 is a top plan View thereof, Fig. 3 is a frontelevation of the pencil Sharpener, Fig. 4 is a vertical section taken onsubstantially line ze-a' of Fig. 3, and Fig. 5 is a fragmentary detailsection taken on substantially line jf/--2/ of F ig. 4.

The preferred forinof'construction as illustrated in the drawings`comprises a frame 1 preferably formed of metal. Arrangeifl in thebottom of the men'iber l is a. sliding receptacle or drawer 2 for thereception of the shavings and. dust removed from the pencil when the.device is in operation'. Arranged upon the front side of the verticallydisposed back wall of the frame 1 a Yertically disposed block 3, securedin position by means of lthumb screw 4, the latter engaging an elongatedslot 4 pro'- vided in the frame 1 soas to permit of ver'- ticaladjustment of the member 3. A screw stud projecting rearwardly from themember into cngagen'lent with an elongated slot o in. the frame 1 servesas a means of maintaining the lower end of the inember 3 in j'zroocrposition, preventing transverse movement thereof. Y

`r'the member 3 is wedge shape in cross section, as clearly shown inFig. `3. Arranged upon the opposite downwardly con- -theouter-extremities thereof vergeht sides of said member 3 are circular'cutters 6 carried at the outer ends of the arms 7 which are fulcrumedupon the respective ends of the transversely extending screw bolt 8secured in block 3. vFormed integral with the arms 7 at the fulcrumpoints thereof are operating levers 9 which project upwardly andforwardly as shown, being opera tively connected by means of the knob`or handle piece 10. The arrangement is such, as will be observed, thatoscillatory Inovement of the levers 9 will impart sliding orbitalmovement to the cutters 6 upon thev opposite inclined surfaces of themember 3. They cutters 6 are yieldingly held against said surfaces ofthemember 3 through the lmedium of compression springs 11 whichareinterposed between the outer sides of the arms 7 and the head of thebolt 8 'in one instance and the thumb screw 12 threaded upon said boltin the other instance; the

arrangement being such as will be observed that adjustment of the nut 12upon said bolt effecting adjustment of the t nsion of said springs. Thelower ends of t e arms 7 rest against the opposite sides of the member 3so that. the springs 11 engaging'against the medial portions of saidarms serve to force the cutters 6 against the opposite sides of saidmember, adjustment of the tension of said springs as above mentioned.effecting the adjustment of the force exerted by said springs upon saidcutters.

vFormed in the member 3 adjapent the outer end thereof is a verticallyextending opening 13 adapted to receive-a pencil. The lower end portionof the opening 13 1s preferably elongated transversely as shown inFig. 5so that upon-insertion of apencll therein a leaf spring l5 which isadapted to engage against the back side of the pencil will force thelatter 'toward'the forward portion 14 of said opening, Wdging" the samebetween the opposite acutely converginglsides of said portion 14 of saidopening to maintain the pencil securely in position during the whittlingor sharpening 0peration, as will be hereinafter described. 'The upperenel portion lofthe member 3 is preferably recessed or cut away asclearly shown fin Fig. 4 for the reception of the spring 15r and also inorder to reduce th .weight of the device to a minimum. Rotatably mountedin the cyiii'idrically formed upper end portion of the opening 13 is asleeve 16 adapted to serve in the capacity of a pencil holder orsupport, the lower /endfof said sleeve being split longitudinally andcontracted so" thatv upon insertion of a pencil thereinto the fingersformed `at said end of said sleeve will securely grasp the pencil andthereby lock the same to'said sleeve, and sothat when said sleeve isrotated the pencil arranged therein willV be rotatedaccordingly. .Formedvupon the sleeve 16 adjacent the upper end thereofv is a series ofratchet teeth 17. A plate 18 secured upon thevfront side of the .jmember 3 projectsv upwardly above the upper end thereof 'and has itsupper end bfurcated, the ends or branches 19 at said vend engaging overthe projecting teeth 17 to serve asa means of locking the sleeve 16 inposition,

- vt-hereof but permitting of rotary movement.

Fulcrumed at 2() upon the plate 18 is an l -arm21 formed atits upper endwith a pawl 22 adapted to engage they rachet teet-h 17 for impartingrotarymovement to the sleeve 16.

scillatory movement of the arm 21 is. limitedby the screw 23 whichengages an elonl gated arcuate slot 24 provided in said arm,

theconnections ofthe arm 18 with the screw l 23 andat the fulcrum pointthereof being loose, as :show-n in Fig. l, so as to permit of slightforward tiltingthereof so as to allow .the `pawl 22 being drawnrearwardly over.

` the rachet teeth 17. The opposite edges of the arml 21. are providedwith rojecting inclined edge portions 25 and 26, t 1e former beingpositioned for engagement by one of the levers 9l during. upwardmovement I thereof andthe other of said edge ort-ions for engagementwith the other of said levers during the.'downwardly movementy thereof.flhe''arrangement is such as will be observed will-.effect rocking ofthe arm 21 toward the leftor ina direction such that thepawl 22 45- 'vthe-sleeve 16. Engagement of thev surface' 26 thereofwill yengage theteeth 17 and rotate during downward movement of the' levers 9 vfromtheir upper terminals of movement efectsrockingof the arm 21 to initialposition 'and ,consequently'A the drawing of the v Ap'awl!22jb'ack overthe teeth 17 for a fresh .-grip-thereof.y The 'portion of the levers 9.engaging with the surfaces 25 and 26 are so .f disposed 'as-'Willbejobserved that engage- .ment-'thereofwith the arm 21 during thepgp'ward movement will. tend to force said armagainstthe plate 18 andhence the pawl ^22 toward operative position against the j #teethlfgengagement of said portion of said .levers-with the arm 21 duringdownward movement tending 'to forcel said arme out- War'dly 'and' henceto 'effect disengagement of-.ther pawl22 ywith the ratchetteeth. .With

the construction set forth then., it will be.

observed thatjoscillatory movement of the preventing vertical movementlevers 9 in addition to imparting a slidable orbital movement to thecutters 6 will automatically` eect intermittent rotary movement of thepencil supporting mechanism 4and hence of the pencil arranged therein.

.Arranged directly below the lower terminal of the opening 13 is atransversely extending'bar 27 the ends of which are slidably mounted inthe opposite sides of the frame 1. .Thebar 27 serves as a stop for the'the bar 27. Wherf thus posltioned the opposite sides of the ,lower endportion of the pencil will project beyond the opposite convergentsurfaces of the member 3 and s0 'that upon oscillation of the levers 9the cutters 6 will engage said projecting sides of the pencil, whittlingthe same iiush with the surfaces upon which said cutters are mounted.Upon oscillation of the levers 9 the pencil arranged in the device willbe intermittently rotated as above mentioned so as to present newportions of the same fen-Whittling by the blades or cutters 6 in theirdownward movement. By the provision of the two cutters 6 it is apparentthat the 'cutting or sharpening of the pencil will be effected withgreat expedition, it being clear that with this provision it is onlyrequired to reciprocate the levers 9` until the pencil has been turnedthrough a half revolution or one hundred eighty degrees, it beingunderstood that were but one cutter employed it would be necessary tomove the pencil to a complete revolution or three hunderd sixty degreesto complete the sharpening thereof. Provide-d upon the bar 27'is a post28 adapted to be moved to register axially with the opening 13, as shownin dotted lines in Fig. 3. The post 28 is provided for use in theinitiall sharpening of a pencil. With this provision, upon the insertionof a pencil into the device the post 28 will serve to position the lowerend of the pencil higher in the block 3 so that the cutters uponoscillation of the levers 9 will not at first remove cuts of dull thelatter. Provided in the cutters 6v i the upper extremity of said postinto con-4 pencil; this equalizing 'rcounter action evi# dentlylessening the possibility of breakage of the lead during the sharpeningoperation. The orbital sliding movement imparted to the cutters byoscillation of the levers. 9

is of great advantage since when so moved sliding or oblique nature,preventing'ripfping or splittingof the wood such as frequently occurswhere the cut is longitudinal or transverse. Through verticaladjustulation of the sharpnessl of the point to which the lead of thepencil will be-fyyhifttled in the operation of the device; it'being'clear ing the bluntness of the point to vwhich the lead will besharpened. The bar 27 r'is formed of a soft metal such as brass so thatcontact of the cutters `6, which are formed of a harder metal such astool steel, will not are pertorations 29 providing means for ro. tatingthe same to present a fresh portion when one portion of the peripheryhasbeen dulled through usage, said perforations bemg for effecting thisadjustment.

While I have illustrated and described the preferred construction forcarrying my invention into eiect, the sameis capable of variation ormodification withoutdeparting from the spirit 'of the invention. Ithere-A fore do not wish to be Ylimited to the exact Adetails ofconstruction set forth, but desire to avail myself of such variations'and'jmodia ications as come within the Scope of the appended claims,

Having described my invention what I claim as new and desire Patent is:

1. In a pencil'sharpener, the combination of a wedge shaped block havinga' pencil opening extending therethrough and 1ntersecting the wedgesurfaces; a pivoted lever mounted at each side ot' said block; a cut-tercarried by each of said levers andv slidin upon the corresponding wedgesurface yo said block; a pencil holder rotatably mountl.ed in saidpencil opening; ratchet teeth on said holder; anv oscillatory armpivoted bethe cut thereof linto the pencil will be 6f al nient of theblock 3 as permitted by ,the-l screw 4l, provision is made for effectingreg-'v end of that when said block is at its uppermost of' the' pencilvwill be.

:against vone side of said opening;

adapted to 'be engaged by a pointed tool.

to secure byLettersl tween said levers and provided with inclinedsurfaces adapted to be engaged by said'levers to cause oscillations ofsaid arm; a-pawl on said arm adapted to engage said ratchet teeth; and astop for the end of said pencil, substantially as described.

v2. Ina pencil Sharpener, the combination of a wedge-shaped block'having a pencil opening extending 'therethrough and intersectingethewedge surfaces; a pivoted lever mounted at each side of .said block;yieldsaid block; a cuttercarried by each of said levers ,and slidingupon" the' corresponding lwedge surface of said block; a pencil holderlrotatably mounted in said pencil opening; ratchet teeth on said holder;an oscillatory arm pivoted between said levers and pro-- .vided withinclined surfaces `adapted to be engaged by said leve-ris to vcauseoscillations .of said-arm; a pawl on said arm adapted toengage saidratchet teeth; and a stop for the said pencil, substantially asdescribed.

gated ,pencil opening extending .therethroughl and intersecting the.,wedge surfaces; yieldable means for pressing 'a pencil a pivoted levermounted at each side of said' block; a cutter carried by each of s'aidlevers and sliding upon the corresponding wedge surface of saidblock; apencil holder rotatably mounted in said pencil opening; ratchet 3.' In apencil fshrpener, the combination .of af'wedge-shaped `Arblock having anelonfable means'for pressing said levers vtoward l,

teeth on said holder; an oscillatory arm pivoted between said levers andprovided with said levers to cause oscillations of said arm; a pawl onsaid arm adapted to engage said ratchet teeth; and a sto for the endofsaid pencil, substantially as described. v 1` of a 'wedge-shaped block-having an elongated 'pencil opening extending therethrough andintersecting the wedge sur` I faces; yieldable means for pressing apencil against one side of said opening; a pivoted lever mounted at eachside of said block; yieldable means for pressing said levers toward saidblock; a cutter ,carried by `each of said levers and sliding upon thecorresponding wedge'surface o opening; ratchet teeth on said' holder; anoscillatory arm ed to be engaged by said levers to cause oscillations.yof said arm; a pawl on said arm adaptedto engage said ratchet teeth;anda stop for the end of said pencil, substantially as described. '5. Ina pencil shar ener, theK combination of a wedge-shaped lock yhaving aencil opening extending therethrough and Iintrinclinedsurfaces adaptedto be engaged byivoted between saidl loversl and provided with inclinedsurfaces Vadapt- 4.l Ina pencil Sharpener, the combination said' block;a pencil holder rotatably mounted in said pencilv se'cting the Wedgesurfaces; a' -pivoted lever mounted at each side of saidblock;Valcutt'er' carried by.each 'of said levers 'and'sliding uponthecorresp'ondingwedge surface of -said bloclrgwa pencil holder rotatablymountedin said pencil opening; ratchetf-teetlion i' said holder; .an'oscillatoryarm pivoted between said levers and 'provided with i`n'.clined surfaces-adapted to be engagedby l'said levers toeauseoscillations of said arm;

a paWl onsaid arm adapted to engage said ratchetl teeth; a slidableranged adjacent said b loclrgand a post on saidstop adapted'tofbe placedin alinement with said. opening; substantially as described.

- 6. In a pencil Sharpener; the combination A .o a Wedge-shaped blockhaving a pencil kWedge surface of Aopening extending therethrough andintersecting the Wedge surfaces; a pivoted lever mountedat each sideofsaid block; yieldable means for 'pressing saidleverstoward pengaged-by said .levers to cause oscillations of saidarni; a paw] onsaid arm adapted to 'engage said ratchet teeth.; a slidable pencil vstop varranged adjacent said block; and a pencil stop ar- `'posten saidstop adapted to be pi ceu 1n `alinement with said opening, substantiallylas described. l'

7. In a penci/l sharpener,the combination With a rotatable pencilholder, of two piv- `oted levers arranged at opposite sides thereof;ratchet teeth on said holder; an oscillatory arm pivoted between saidlevers and therein for the reception of the pencil, said A opening beingtransversely elongated; resilientI means adapted to'engage the pencilinserted into said opening to force the. saine againstone side of saidopening; a Inovably mounted cutting element; and'means for op eratingsaid cutting element,

In testimony whereof I have signed nl v name to this specication in thepresence of f" two subscribing Witnesses.

CHESTER NASH.

Copies of thisV patent may be obtained for five cents each, byaddressing the Commissioner of "latents,

` Washington, D. C.

